The grounding wire is attached to the frame of my old thermostat. Where would ground go with this relay?
15539
I'm not an electrician, but you might get some help here: http://jmbldwn.com/post/13265831545/got-my-nest-thermostat-working. In my particular case, the heater had a built-in and very simple thermostat...not much more than a single pole switch, really. I opened up the heater and wired the red and black wires exactly where the internal thermostat was connected, and then I ran low-voltage wire to my new thermostat. Worked like a champ - and still does!
92850
If you look at it from the Thermostat point of view, you have two line voltages coming in (red, black) and two out (red, black). If you can install the relay there it's the same wiring as we described earlier.If you install the relay at the heater, you'll need to run low voltage wiring to where you want to locate the thermostat.
982693
Should work. Check for a second themostat or temperture sensor which will need to be conected
1453632
Have a large gauge wire running directly from the battery or alternator to one of the large posts on the relay. Connect the other large post to the radiator fan. Then, run a small gauge wire from your fuse block (usually on a circuit that turns off/on with the ignition switch) to one of the small posts on the relay. Then hook the other small post to ground.
1783661
The black wire should be the ground wire. I believe it should of had a round "ring" end, I'm guessing it got left off at the factory by accident.
174267
I would not recommend doing so. Removing the grounding prong can result in an electrical hazard.
1399742
You would still need to ground it separately. Usually you can find a suitable ground very close to the fuse box.
1399744
You still need to run a ground. This product just taps into an existing hot (positive +) fuse location on your fuse block. Your red positive hot wire will connect to this product.
897338
I am not sure, but if it is plugged in to a grounded outlet it should be fine. If you are experiencing issues with the heater return it if you can as comfort zone is not the greatest customer service company
828623
One wire goes to the ground on the vehicles frame to one of the five perimeter bolts. The other wire comes from one side of the gas gauge to the center nut/bolt of the sender unit. No third wire was used on my installation.
422677
It should be wired in line on the wire that goes from the thermostat to the control board and controls the cooling stage of the condensing unit / compressor. What wire it should be wired into depends on the particular unit, you will need to consult the wiring schematic or an A/C professional to determine that. On my particular system (Trane 3.5 ton single stage heat pump) it was the yellow thermostat wire to the control board in the air handler that it is installed in. YMMV.
713852
Supposed to be a ground wire, you can attach it yourself or not since this is a 12 volt application
2221040
It is a wire for wire replacement. However mine failed after about 10 days ( on off on off.....). It would have burned ac motor out if I hadn't been there. I have modified a home programmable control. Better temperature control and can be programed. Only down side so far is control runs its backup batteries as the control voltage supplied to the thermostat from the ac/heater is not compatible with the programmable control. See http://www.modmyrv.com/2008/07/14/rv-digital-thermostat for an example of this mod.
1123269
I think the thermostat is "hard-wired" in, but it's part of the lead wires between the panel and the fan, so if you're a master electrician you could probably cut the wires yourself to remove the thermostat mid-line, then splice them back together to bypass it, but that would probably void any warrantees.
1111084
The two small wires in the relay -one connect to center post on your starter and one to body ground. The two large post with nuts- one post to positive battery post and the other post connected to your starter motor!Good luck......Joel
1304143
My previous set up was 3 wires. 2 hot and a ground. I did a few searches and was told that this unit did not need the ground wire so I left it disconnected as there is no place to connect it. The unit has been working fine for 8+ months now.
417030
I think it does not need it. But instructions say ground wire is highly recommended. My take: since there is circuitry imbedded in the unit, the ground keeps it from getting fried. I wouldn't install without ground.